10/1/2018-9/30/2021. co-PI, "CS4SF: A Scalable Model for Preparing and Supporting High School Teachers in Rigorous, Inclusive Computer Science Instruction", NSF CS4ALL. ($389,996 / 3y + $77,997 supplement)
9/1/2016-12/31/2019. PI. "SF Computing for All Learners and Levels (SF CALL)", NSF INCLUDES ($299,960 / 3y)
2014-2019. Senior Personnel, SF BUILD, NIH BUILD grant ($17M / 5y)
6/1/2016-5/31/2019. PI. "SF Bay Basic Skills Consortium", California Community Colleges Basic Skill Partnership, through Ohlone College. ($140,000 / 3y)
2015-2018. PI. "Silicon Valley Engineering Technical Pathways", CA Career Pathways Trust with Evergreen Community College District. ($110,000 / 2y)
2018. PI, "Neighborhood Health and Well-being" (Tendai Chitewere, project lead). UCSF/Oakcare Medical Group ($6,500 / 1y)
2017-2018. PI. "Golden Gate STEM Alliance", Bayer Foundation ($15,000 / 1y)
2016-2017. co-PI, Project ExCEL, California Department of Education, ($499,913/2y)
2014-2017. PI, "ITEAMS", California Math Science Partnership with San Rafael City Schools, Dixie School District, Ross Valley Unified and Marin County Office of Education. ($1.5M / 3y)
2011-2016. Co-PI on "San Francisco State Noyce Scholarship Program", NSF Noyce. ($1,200,000 / 5y)
2015-2016. PI, "Golden Gate STEM Alliance", Bayer Foundation ($27,000)
2015-2016. Co-PI. "Mathematics Capstone Course Resources: Preparing Secondary School Mathematics Teachers". NSF IUSE/EHR. ($250,000 / 1.5 y)
2015-2016. "SF Math Circle at June Jordan School", Tensor-SUMMA grant ($12K / 2y)
2014-2015. co-PI, Western Regional Noyce Initiative, sub, NSF DUE. ($51,040 / 1y)
2013-2015 PI, "Hybrid Precalculus", CSU-CCCS Hybrid Model Math Consortium, ($125,000 / 2y)
2009-2014 Senior Researcher on “Characteristics of Successful Programs in College Calculus”, NSF REESE ($2,000,000 / 5y)
- 2013-2014 PI, "Foundational Science Coursework", S.D. Bechtel, Jr. Foundation, ($55,000 / 1y)
- 2013-2014 PI, "STEM Mentorship Advancement Program", Dean Witter Foundation, ($20,000 / 1y)
- 2013-2014 co-PI, “Golden Gate STEM Alliance”, California STEM Learning Network ($50,000 / 1y).
- 2012-2014 PI, "Orange Country Engineering Pathways", subcontract, Dept of Labor H1B Training Grants ($80,000 / 2y)
- 2011-2014 PI, "Climate Change Scholars", NSF OEDG. ($200,000 / 3y)
- 2010-2013 PI, California Math Science Partnership grant with SF Unified. PRIME2 (sequel to PRIME). ($1.350,000 / 3y)
- 2011-2013 PI, "Math Gateway Pilot", subcontract, S.D. Bechtel Foundation. ($72,000 / 1y)
- 2013 PI, “CA Teacher Pathway OST Activities Standards Alignment”, Growth Sector and Bechtel. ($25,000 / 1 y).
- 2012 PI, "STEM Summer Institute 2", subcontract, S.D. Bechtel Foundation. ($22,000 / 1y)
- 2012 PI, Bridge to Engineering for Veterans, subcontract with Growth Sector with Cañada College and San Mateo WIB. ($16,000 / 1y)
- 2011-2012 PI, "Engineering Precalculus Bridge", subcontract with Growth Sector with Chabot College and Alameda Workforce Investment Board. ($30,000 / 1y)
- 2011-2012 PI on "The Math of Khan", Google Faculty Grant ($22,000 / 1y)
- 2011-2012 PI, "Foundational Science Collaboration", S.D. Bechtel Foundation. ($70,000 / 1y)
- 2010-2011 PI, STEM Summer Institute, contract with Growth Sector. ($60,000 / 1y)
- 2008-2011 Co-PI on “PRIME (Partners as Resources to Improve Mathematics Education)”, CA Math Science Partnership with SF Unified School District ($1.2M/3 yrs)
- 2004-2011 PI, “CAREER: Online and Live Communities of Teachers”, NSF CAREER Award ($489K/5 yrs)
- 2002-2011 Secretary of the SIGMAA on RUME (Special Interest Group of the Mathematical Association of America on Research in Undergraduate Math Education). Elected to five two-year terms. ~600 members
- 2009 Creator of Better File Cabinet, selected Math Forum Hot Spot of the Month, Dec 2009
- 2009-2010. Co-PI on “Revitalizing Algebra” Supplemental 2, NSF Math Science Partnership ($199,579 / 2 yrs)
- 2007-2009 Co-Director, "Transforming Calculus", CSU Transforming Course Design grant ($25K/1 yr)
- 2007-2008. Co-PI on “Revitalizing Algebra” Supplemental 1, NSF Math Science Partnership ($513,000 / 2 yrs)
- 2006-2008 Co-Leader, "Teachers Collaborative Algebra Accessibility Project", CA Math Science Partnership with San Rafael City Schools (~$1.2M/3 yrs)
- 2005 NSF Cyberlearning Task Force on Virtual Communities of Practice, one of twenty members by invitation of the Computing Research Association and the International Society of the Learning Sciences
- 2003-2006 Co-PI on “Revitalizing Algebra”, NSF Math Science Partnership. ($3,354,105 / 3.5 yrs)
- 2001-2002 PI, "Mixed Metaphors: Undergraduate Use of Language in Calculus", NSF Research Starter Grant ($50K/1 yr)
- 2001-2002 MAA Dolciani Project NExT Fellow
- 2002 SFSU Affirmative Action Faculty Development Program
- 2002 SFSU Summer Research Stipend
- 2000-2001 Mentoring Grant from the SIGMAA on RUME
- 2000 International Conference on Learning Sciences (ICLS) Fellowship for Special Workshop on Methodology, University of Michigan.
- 1999-2001 NSF PFSMETE Postdoctoral Fellowship, U.T. Austin
- 1998-1999 University of Texas at Austin Postdoctoral Fellowship
- 1997-1998 University of California Teaching Effectiveness Award
- 1997-1998 University of California Outstanding Graduate Instructor
- 1996-1997 University of California Graduate Division Fellowship
2021-present. Member, SFSU Tutoring Advisory Board
2020-present. Member, SFSU Undergraduate Programs for Educator Preparation Committee
2020-present. Partner Director, Center for Science and Math Education
2019-present. Member, Search committee for Executive Director of the Tutoring and Academic Support Center
2017-present. Affiliated Doctoral Faculty, Ed.D. Program.
2014-present. Project Director, Frank Sheehan Scholarship
2020-2021. Member, B4 and Quantitative Reasoning Task Force
2010-2020. Director, Center for Science and Math Education
2020. Campus Team Member, CSU Data Summit – From Collection to Action: Using Data to Guide Continuous Improvement
2018-2019. Member, SFSU Committee for Operational Review of Tutoring
2018-2019. Member, SFSU Academic Master Plan Working Group 5
2018-2019. Participant, CSU Certificate Program in Student Success Analytics
2014-2019. Member, SFSU Team for CSU Math Teacher Educator Partnership
2018. Member, All University Teacher Education Committee
- 2017-2018. Participant, Integrated Bilingual Education for Social Transformation (I-BEST) Planning for Graduate College of Education, funded by California Commission on Teacher Credentialing
- 2017. Consultant, CSU Faculty Development Council.
- 2017. SFSU Representative, CSU Faculty Professional Development Focus Group
- 2017. Member, SFSU Patent Committee
- 2017. Member, COSE Graduation Initiative Committee.
- 2016-2019. Consultant, SFSU Causeways, Keck Foundation
- 2013-2017. California State University Entry Level Math Committee
- 2016-2017. Leadership Team, Project ExCEL (elementary teachers in SFUSD and Daly City)
- 2016. Member, Student Academic Pathway Project
- 2012-2017. Advisory Board, Metro Academy of STEM
- 2014-2015 Member, Search Committee for Dean of College of Science & Engineering
- 2013-2014 Member, SFSU Presidential Strategic Planning Coordinating Committee
- 2013 Presenter, New Faculty Orientation
- 2010-2013 Center for Teaching and Faculty Development Advisory Board
2010-2012 Academic Senate representative, All University Teacher Education Committee
- 2010 Faculty Representative, Bechtel Math and Science CC Transfer Program
- 2009-2010 Chair, Search Committee for Director of Center for Math and Science Education
- 2007-2010 Faculty Co-Director, Center for Math and Science Education
- 2007-2010 Member, Faculty Hearing Panel
- 2010 Member, University Advisory Council, San Francisco Teacher Institutes Project
- 2006-2009 College Representative, University Teacher Credential Committee.
- 2007 Co-teacher, EDDL 921 for new EdD program in Educational Leadership
- 2007 Presenter, SFSU Touch of Class for Welcome Days
- 2007 Co-presenter, Grantwriting Workshop for University Faculty-Staff Retreat
- 2006 Co-presenter, Grantwriting Workshop for Center for Teaching and Faculty Development
- 2005-2006 Chair, Planning Committee for the Center for Science and Math Education
- 2006 SFSU Representative, CSU Summit on Math and Science Teachers, Industry, CA.
- 2006 SFSU Representative, MSRI Math Education Conference, Berkeley, CA.
- 2006 SFSU Representative, CSU Conference on Early Assessment Program, Oakland, CA.
- 2005 Member, Liberal Studies Council
- 2005 Presenter and Facilitator, SFSU Community Access and Retention Program, Spring Tutor Orientation
- 2002-2006 Judge at SFSU COSE Student Project Showcase
- 2002 Participant, CSU Math Educators Face-to-Face Meeting at Asilomar
- 2002 Participant, SFSU College of Education CAD/MS Workshop with Vera Lane
- 2001 Leader, One-day workshop for K-12 in-service math teachers on Economics and Math for National Council on Economic Education (with Prof. Blecha, SFSU)
Presenter and discussion leader, "Initiating, Sustaining, and Researching Mathematics Department Transformation of Introductory Courses for STEM Majors", MSRI Critical Issues in Math Ed, Mar 18 2022.
- Invited Panelist, Math Equity and the Power of Universities, The Mathematics of Opportunity: Charting a Path to Equity, 4th Annual Mathematics of Opportunity conference, Mar 3 2022
- Invited Presenter, Trusting Students To Choose Their First-Year Courses. MAA Golden Section Annual Meeting, Feb 26 2022. CSU Maritime Academy, Vallejo, CA.
- Invited Presenter, Math Education Colloquium, Cornell University, Mar 23 2020. Conference cancelled due to COVID-19.
- Invited Presenter, "Teaching Mathematics As A Second Language". FHI360 Exchange Program:English and STEM Integrated Instruction, Jan 2020.
- Invited Presenter, “SF CALL: Computing for All Levels and Learners, Year 3”, 2019 STEM for All Video Showcase. May 2019.
- Invited Presenter, "Managing College Group Work and Creating Groupworthy Tasks", MIT Electronic Seminar on Mathematics Education, May 14 2019.
- Invited Co-presenter, “Administration Responses to EO 1110 and AB 705”, Active Engagement in Mathematics Conference, Ohlone College, Jan 26 2019
- Invited Presenter, "Active Engagement in College Math Teaching", Santa Clara University, Aug 17, 2018.
- Invited Presenter, “SF CALL: Computing for All Levels and Learners, Year 2”, 2018 STEM for All Video Showcase. Transforming the Educational Landscape, May 14-21, 2018.
- Invited Presenter, "Active-Learning Strategies and Developmental Mathematics", CSU Maritime, April 20, 2018.
- Keynote speaker, "Field Guide to Math Teachers in the Continental United States", Conference for Strategies for Engaging Students in Active Learning in Community College, HS and CSU. Jan 20, 2018.
- Invited Presenter, "An Outsider Guide to Helping Math Faculty", CSU Faculty Development Committee, Nov 7 2017.
- Invited speaker, “Equity, Placement and Practice: Student Success in California State College Gateway Courses” for Special Session on Characteristics of a Successful Mathematics Gateway Program, AMS Western Sectional Meeting, Riverside, CA. Nov 4, 2017.
- Invited Presenter, "Designing Powerful Calculus Lessons", Faculty workshop at Santa Clara University. August 17, 2017.
- Invited Presenter, "SF CALL: Computing for All Levels and Learners". 2017 NSF STEM for ALL Video Showcase, May 15-22. http://stemforall2017.videohall.com/presentations/1058
- Invited; Presenter, "SF CALL: Computing for All Levels and Learners". NSF INCLUDES Video Showcase: Envisioning Impact. http://includes2017.videohall.com/presentations/840. March; 20-27, 2017.
- Invited Presenter, "Surviving and Thriving in your First Course Using Active Learning Techniques", Joint Mathematics Meetings, Atlanta, GA. Jan 7, 2017.
- Invited Presenter, "Improving the Targeting of Treatment: Emerging Research on Postsecondary Math Placement Policies". Opportunity Institute Quantitative Leap Webinar. Video archive: http://theopportunityinstitute.org/blog/2016/5/3/upcoming-webinar-quantitative-leap-improving-the-targeting-of-treatment;, June 8 2016.
Invited Participant, "Testing and Beyond: The Future of College Math Placement in California", LearningWorks Summit. Nov 10, 2015.
Invited Participant, APLU/POD STEM Transformation Workshop, Nov 2015.
Panelist, 2015 SF Business Times Roundtable on STEM Education, Sep 18, 2015.
Speaker, “Making Practice Visible: Success in College Calculus”, Santa Clara University Colloquium, May 2014.
Speaker, “Characteristics of Successful College Calculus Programs”, NCTM Research Conference, New Orleans, LA. April 2014.
Speaker, “Educators, Equity, Enrichment: San Francisco STEM Partnerships”, Briefing for State Senator Mark Leno. San Francisco, CA. March 2014.
Panel organizer, "Engineering and Education", CSLNet STEM Summit, Sacramento, CA. February 2014
Speaker;, “The changing education of pre-service teachers in light of the Common Core.” Joint Mathematics Meetings, Baltimore, MD. January 2014
Co-presenter, “Equity, Enrichment and Education in the SF Bay Area”, California Dept of Education 1st Annual California STEM Conference, Sacramento, CA. November 2013.
Talk and Panel, San Francisco Business Times STEM Education Leadership Forum, October 2013.
Panelist, “Common Core Standards”, A New Vision for Preparing Tomorrow’s Teachers in Math, Science, and STEM, Hayward, CA. October 2013.
Lead Panelist, "STEM Education", SFSU Presidential Investiture Week. March 2013.
Talk, "Strengthening The Teacher Pipeline", CSLNet STEM Summit, San Diego, October 2012.
Panelist, "Social Justice and Teaching", SFSU Forum on Social Justice and Equity in the Academy, May 2012.
- Talk, "Calculus, Community and Change", SRI International, September 2011.
Talk, "The CSME Teacher Fellows Program", Math Science Teacher Initiative Directors Meeting, May 2011.
Talk, "Strengthening the Teacher Pipeline", SFSU Congressional Briefing, Washington, DC, March 2011
Talk, "Strengthening the Teacher Pipeline", SFSU Foundation Board meeting, February 2011
- Panelist, "Mathematics and Social Justice", MAA-Project NExT Panel Discussion, Joint Mathematics Meetings, San Francisco, CA. January 2010.
- Panelist, "Becoming a teacher of college mathematics: Video cases for novice college mathematics instructor professional development", AMS-MAA Committee on Teaching Assistants and Part-Time Instructors Panel Discussion. Joint Mathematics Meetings, San Francisco, CA. January 2010.
- "Why Do We Teach This Stuff Anyway? A Brief History of School Math", Sonoma State University Colloquium, September 2009
- Panelist, “Strategies to Support Cohorts of Future Math and Science Teachers”, California Math Council - North, Asilomar Conference, December 2008.
- Panelist, “Evaluation and Teaching Circles”, American Institute of Mathematics, June 2008.
- “Analyzing and Sharing Rich Groupworthy Problems”, CMC-North Asilomar Conference, December 2007.
- “Emerging Scholars Programs: Experiences and Principles”, San Jose State University Math Colloquium, November 2007.
- “Thinking In and Out of Contexts”, Math Education Colloquium at Sonoma State University, Spring 2007
- Talk, "College math and science performance and ethnicity: Some recent trends and ideas", National Summer Conference Integrating Science and Mathematics Education Research into Teaching, Orono, Maine, June 2006.
- Keynote speech: “Thinking About Thinking In Context”, Conference of the Alameda County Collaborative for Learning and Instruction in Mathematics, Hayward, CA. March 2006.
- Invited Talk and Panel: “Ethnicity and College Math: Some Recent Trends and Ideas”, American Association of Physics Teachers Summer Meeting, Salt Lake City, UT. August 2005
- Invited Talk and Panel: “The Faculty Member As Teacher and Scholar”, Project NExT, Mathfest, Albuquerque, NM. August 2005.
- “Research to Practice. Ethnicity and College Math: Some Recent Trends and Ideas”, Mathfest, Albuquerque, NM. August 2005.
- Keynote speech: “What Were They Thinking?! Learning, Teaching and Overlapping Communities” Conference of the Alameda County Collaborative for Learning and Instruction in Mathematics, Hayward, March 2005.
- Invited Panel of NSF CAREER Awardees, Association of Mathematics Teacher Educators, Dallas, January 2005.
- “Teaching Assistant Communities of Practice”, PMENA Working Group on Mathematics Teaching Assistant Preparation and Development Research, Toronto, Canada, October 2004.
- “Teaching Calculus with Group Work: Resources and Challenges”, California Math Council / North 46th Annual Asilomar Conference, December 2003.
- “Evaluating On-line Teacher Conversations With Statistics and Graphs” (with Megan Moore), AAAS (American Association for the Advancement of Science), San Francisco, June 2003.
- “Teaching Calculus With Group Work: Experiences and Research”, Math Education Colloquium, Cal Poly Pomona, May 2003.
- “Metaphors and Contexts: Students Wrestle With Rate”, Math Education Colloquium, Harvard School of Education, April 2003
- “Teaching Calculus with Group Work: Resources and Challenges”, California Math Council/North 45th Annual Asilomar Conference. December 2002.
- Math Education Colloquium at Arizona State University, November 2002
- “Metaphor as a Theory of Learning,” MAA Mathfest Research Pre-session on Research on Undergraduate Mathematics Education, Burlington, VT. Invited to be Moderator for a Plenary Panel Discussion with Rafael Nunez, Ed Dubinsky and Michelle Zandieh; July 2002.
- Math Education Colloquium at Sonoma State University, Fall 2001
- Math Education Colloquium at San Francisco State University, Spring 2001
- Math Education Colloquium at Arizona State University, Spring 2001
- Math Education Colloquium at California State University, Monterey Bay, Spring 2001
Poster co-author, “STEM Supplemental Instruction at San Francisco State University, A Large Urban Hispanic-Serving Institution”, by Bayliss, Hsu, Rath, Peterfreund. 12th annual International Conference of Education, Research and Innovation. Seville, Spain. Nov 11-13, 2019.
- Co-author, "Students’ Ways of Thinking About Transformational Geometry", with Natasha Speer*, University of Maine; Jennifer Dunham, University of Maine; Eric Pandiscio, University of Maine; Shandy Hauk, WestEd; Eric Hsu, San Francisco State University. 2017 SIGMAA on RUME’s Conference on Research in Undergraduate Mathematics Education. http://sigmaa.maa.org/rume/Site/Proceedings.html
- Discussant;, “Persistence, Instruction, and Coordination in the National Study of Calculus”, 2016 NCTM Research Pre-session, San Francisco, CA. April 14, 2016.
- Presenter, "ITEAMS: Integrated Technology, Engineering, Math, and Science", CA STEM Symposium, Oct 30, 2015.
“Features and Practices of Successful Calculus Programs: Insights from Case Studies at Seventeen Institutions”, Network for Academic Renewal Conference, Association of American Colleges and Universities, October 2013
"Mathematical Modeling in Context", SACNAS (Society for Advancement of Chicanos/Hispanics and Native Americans in Science), San Antonio, TX. October 2013
"Building Powerful Foundational-Level Mathematics Programs" (with Carol Fry Bohlin). California Math Council / North 54th Annual Asilomar Conference. December 2011
"Free, Open, Online, Mathematics Help Forums: Experiences of Newbie Helpers" (prepared with Carla C. van de Sande, given by van de Sande). American Educational Research Association, Denver, CO. May 2011.
- "The experience of newbie helpers in a mathematics, open, online, homework help forum: Becoming part of a community of helpers."(prepared with Carla C. van de Sande, given by van de Sande). Joint Mathematics Meetings, New Orleans, LA. January 2011.
- "Partnerships Across Time and Space" and "Strengthening the University Teacher Pipeline: A Communities of Practice Perspective", Science and Mathematics Teacher Imperative of the Association of Public and Land-grant Universities, Cincinnati, OH. June 2010.
- "Supporting Cohorts of Teachers: Year Three", Association of Mathematics Teacher Educators, Irvine, CA. January 2010.
- “Revitalizing Algebra” (with Judy Kysh and Diane Resek), California Math Council / North 49th Annual Asilomar Conference, December 2006.
- “Graduate Teacher Social Networks” (with Tim Gutmann), Research on Undergraduate Mathematics Education Conference, Rutgers University, NJ. Talk, February 2006.
- “Student Use (and Misuse) of Graphs and Rates of Change in Economics” (with Victor Contini), PME/NA 2004 (Psychology of Mathematical Education, North America), Toronto. Poster, October 2004.
- “Reconsidering On-line and Live Communities of Practice,” Society for Information Technology in Teacher Education 2004, Atlanta, GA. Talk, March 2004.
- “On-line Teacher Communities: Measuring Engagement, Responsiveness and Refinement” (with Megan Moore), PME-PME/NA 2003 (Psychology of Mathematical Education, North America), Manoa, HI. Talk, July 2003.
- “Pictures of Calculus Knowledge Networks: Data and Software,” PME/NA XXIV, Athens, GA. Poster, October 2002.
- “Switching Contexts: Students Doing Calculus” MAA Mathfest Research Pre-session on Research on Undergraduate Mathematics Education, Burlington, VT. 45 min talk, July 2002.
- “A Visual Analysis of Calculus Students Talking,” ICTM2 (International Conference on Teaching of Mathematics), Crete, Greece. Poster, July 2002.
- “Investigations of the Major Conceptual Strands of First Semester Calculus: The Role of Theory in Research and Practice,” NCTM Research Presession (National Council of Teachers of Mathematics), Las Vegas, NV. Two and a half hour presentation with Marilyn Carlson and Mike Oehrtman, April 2002.
- “A Visual Analysis of Knowledge Networks: Students Discuss Calculus,” NCTM Research Presession, Las Vegas, NV. Poster and hour presentation, April 2002.
- “Calculus Students Talk: A Visual Analysis,” Joint Mathematics Meetings, San Diego, CA. Talk, January 2002.
- “On-line Math Teacher Conversations: Graphical, Statistical and Semantic Analysis,” PME/NA XXIII, Snowbird, UT. Poster, October 2001.
- “Developing A Virtual Community Of Teachers: The Effects Of Contact And On-Line Conversational Dynamics,” NARST (National Association of Research in Science Teaching) 2001 Meeting, St. Louis, MO. Talk, March 2001.
- “Mixed Metaphors: Undergraduate Language and Understanding in Calculus,” 2001 Joint Mathematics Meetings, New Orleans, LA. Talk, January 2001.
- “Developing A Virtual Community Of Teachers: The Effects Of Contact And On-Line Conversational Dynamics,” PME/NA XXII, Tucson, AZ. Poster, October 2000.
- “Mixed Metaphors: Undergraduates Do Calculus Out Loud,” PME/NA XXII, Tucson, AZ. Poster, October 2000.
- “Moving Past A-ha!: A Pilot Study on Undergraduate Understanding of Calculus,” ARUME 2000 (5th Annual Conference for Research on Undergraduate Mathematics Education), Chicago, IL. Half-hour talk with Mike Oehrtman, September 2000.
- “Building a Better File Cabinet: Virtual Resources for Teachers,” CAMT 2000 (47th Annual Conference for the Advancement of Mathematics Teaching), Houston, TX. One hour talk, July 2000.
- “A Better File Cabinet: A Web-Based Database Of Problems And Practices,” ICLS 2000 (International Conference on the Learning Sciences), University of Michigan. Software demonstration, June 2000.
- “A Web-Based Database of Problems and Practices and Real Communities of ESP Teachers and Students.” CSCL’99 (Computers Supporting Collaborative Learning), Stanford University. Software demonstration, December 1999.
- “A Web-Based Database of Problems and Practices and Real Communities of ESP Teachers and Students,” PME/NA XXI, U. Morelos, Mexico. Poster, October 1999.